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тАО08-25-2009 09:57 AM
тАО08-25-2009 09:57 AM
Re: slow performance, run a process takes up 25 hours
CPU TTY PID USERNAME PRI NI SIZE RES STATE TIME %WCPU %CPU COMMAND
2 ? 1939 root 148 24 3129M 3588K sleep 1:15 2.48 2.48 data_export1
1 ? 17045 root 148 24 3129M 3588K sleep 12:13 1.31 1.31 data_export2
3 ? 51 root 152 20 1568K 1568K run 203:41 1.22 1.22 vxfsd
1 ? 2831 root 152 20 267M 60480K run 131:30 0.91 0.91 java
2 ? 1643 root 152 20 703M 70252K run 31:57 0.23 0.23 java
2 ? 1485 root 152 20 16936K 2524K run 0:17 0.18 0.18 rpcd
3 ? 2616 root 152 20 98092K 10448K run 2:33 0.16 0.16 vxsvc
3 ? 1850 root 152 20 34840K 5060K run 6:11 0.14 0.14 ovcd
3 ? 1886 root 152 20 69108K 9980K run 1:16 0.14 0.14 coda
1 ? 1820 root -16 20 39748K 16828K run 59:08 0.14 0.14 midaemon
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тАО08-25-2009 10:15 AM
тАО08-25-2009 10:15 AM
Re: slow performance, run a process takes up 25 hours
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тАО08-25-2009 10:18 AM
тАО08-25-2009 10:18 AM
Re: slow performance, run a process takes up 25 hours
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тАО08-25-2009 10:24 AM
тАО08-25-2009 10:24 AM
Re: slow performance, run a process takes up 25 hours
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тАО08-25-2009 10:29 AM
тАО08-25-2009 10:29 AM
Re: slow performance, run a process takes up 25 hours
Drop your ninode value to 2048. Requires a reboot.
If your vx_ninode is set to 0 then change it to maybe anywhere from 20,000 to 100,000.
I don't see how much memory you have on this box, just swap on lvol2. So I would at least add 8Gb more of swapspace and use SAM to set it up immediately. You can still do that since your only at 11.23.
It may be an old process didn't clean out of memory correctly, so from top you may not see it. You can do a reboot and see if it cleans up anything left over your not able to identify.
You can use that reboot as an opportunity to make these couple of simple parm changes (if you like).
Just a couple real quick thoughts.
Rgrds,
Rita
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тАО08-25-2009 10:32 AM
тАО08-25-2009 10:32 AM
Re: slow performance, run a process takes up 25 hours
Are there other processes running that conflict in i/o with the export job? --> no.
Are there other processes running that cause locking in the data that would suspend the export job completely until the locking is cleared? --> no locking. export data is not like modify, no exclusive lock is required.
Check the syslog if there are any issues with the c4t0d1 disk. Maybe read or write errors and retries. --> nothing about "c4t0d1" nor sys error.
Check around in the database for anything else that niormally does not run during the export process. --> checked database level, nothing changed recently and it's working normal. export process normally take 2 hours, but it is too long this time (and still hanging).
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тАО08-25-2009 10:56 AM
тАО08-25-2009 10:56 AM
Re: slow performance, run a process takes up 25 hours
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тАО08-25-2009 11:09 AM
тАО08-25-2009 11:09 AM
Re: slow performance, run a process takes up 25 hours
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тАО08-25-2009 11:17 AM
тАО08-25-2009 11:17 AM
Re: slow performance, run a process takes up 25 hours
When I see a massive slowdown like this, I immediately check for NFS. If you have any NFS activities, shut them down completely (no automounter, nothing related to network filesystems. I would expect bdf and logins are running slowly too.
Bill Hassell, sysadmin
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тАО08-25-2009 11:22 AM
тАО08-25-2009 11:22 AM
Re: slow performance, run a process takes up 25 hours
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